EPyGrAM

Commit commit:b4880121

Contents since 1.4.3:¶

Formats:

• fix GRIB writing of constant fields
• netCDF CF-1.4 stereopolar projection decoding
• efficient iterator in GRIB (for f in g)

Installation:

• porting to belenos
• porting to MacOSX
• Makefile, deployment and installation updated (new directories/paths)

Miscellaneous:

• EPyGrAM no longer is in charge of setting matplotlib backend: now to be set in $HOME/.config/matplotlib/matplotlibrc
  e.g.
  backend: Agg is the recommended non-interactive backend
  backend: Qt5Agg is the recommended interactive backend for Mageia7
  cf. https://matplotlib.org/faq/usage_faq.html#what-is-a-backend for more information
• operations on Angles

And a whole lot of various fixes...

Commit commit:c6c0cbb8

Contents since 1.4.2:¶

A whole lot of various fixes...

• formats plugged at runtime, if underlying package is available
• TIFF: porting to python3

• applicative functionalities are now implemented as plugins: vtk (3D visualization), basemap, cartopy
• vtk: cf. commit commit:7ddd11b0 for more details
• cartoplot: colormap_helper and extent arguments
• cartoimage method (vector field as color composition)

• porting to Bull Sequana (epona)

Commit commit:fc8cf8c2

Main advances:

• porting of map plotting to cartopy, due to the deprecation announcement of basemap
• new apptool: epy_cartoplot.py, shall replace epy_plot.py with cartopy
• plot3D update, including epy_plot3d.py

More detailed contents, since 1.3.6:¶

• grib_utilities becomes griberies
• rewrite of GRIB read/write methods
• creation of GribDef objects
• new apptool what_the_grib.py
• what(): nicer list of fields
• listfields(additional_keys=...)
• Numerous fixes

• global: avoid to call trans_inq just to get SPdatasize for usual truncations
• use of faFieldName.def GRIB definitions and sfxflddesc_mod.F90 instead of FA_Field_Dict.csv (=> adaptations needed if you have local .epygram versions)

• GRIB2 : better and faster search within GRIB2 files, bugfix for plotting vectors, shortcuts for parameters updated
• Misc: shortcuts for operational models updated (Vortex, domains), new pre-defined zooms

• fields comparison: scatter_with(), compare_to(), normalized_comparison()
• recursive objects comparison improvement
• cartopy: cartoplot() and default_cartopy_CRS() methods

• New apptool: epy_plot3d.py
• Simplification for 3D plotting: * offset, hCoord and z_factor are now hidden from the plotting methods * new util.vtk_guess_param_from_field to ease the choice of the above variables * util.vtk_set_window becomes util.vtk_setup * new util.vtk_proj function to ease the camera manipulation
• Simplification regarding excludeextralevels parameter
• Correction in D3VirtualField.getlevel when level values are position dependent
• D3Geometry.isglobal property is added
• geoid was missing in geometry returned by make_section_geometry
• extract_subdomain can now performs a vertical coordinate change on the whole domain

• ECMWF pre-configuration profiles
• netCDF: Geos geometry read
• netCDF: ignore failed read of validity
• new handling of colormapping helpers + epygram colormaps in json format (=> adaptations needed if you have local .epygram versions)
• improvement of installation script (known platforms only) => towards site-packages
• suppression of femars apptool
• porting to epona fixes
• optimisation for interpolation on Gaussian geometry
• various and numerous fixes...

Commit commit:ccb8424

• Python3 support for GRIB, provided you have ecCodes 2.10.0 onwards
• 3D plotting (requires vtk)
• Diagnostics meta-resources

More detailed contents, since 1.3.3:¶

• 3D plotting (as_vtkGrid, plot3DContour, use_field_as_vccord and plot3DVolume)
• method center added
• getvalue_ij and getvalue_ll rewritten
• interpolation bilinear instead of linear_spline when possible
• extractsection and extractprofile added
• bug correction for getvalue_ll (linear and cubic)
• + and - operations: keep fid if same, compute a consistent validity, in consistent cases

• domain_making: add possibility to set reference_lat for lambert
• method eq_Hgeom
• optimization and parallelization of several methods
• plot3DLLImage, plot3DBluemarble
• method vcoord_as_field
• VGeometry: exclude_extralevels option for hybridH2altitude
• profiles: flux and mass heights now contain extra levels

• Field_Dict_FA.csv: correction for distinction between 0-3-4 and 0-3-5, for cloud water and ice crystal, default value for productDefinitionTemplateNumber
• caches in find_fields_in_resource and inquire_field_dict
• fieldencoding optionally updates fieldscompression dict

• fid of GRIB messages more flexible according to product template number
• fix for int keys in index

• optimization
• moveOnMass option
• default value for productDefinitionTemplateNumber
• fid correction for misc fields read from LFI in true3d mode

• minimal support when Xgrid and Ygrid are defined as 3D

• DiagnosticsResource
• new format netCDFMNH

• update installation script (@cnrm) - incl. dissociate vortex and epygram
• Python3/ecCodes2.10.0 adaptation

• numerous various fixes...
• precipitation types colormapping (ptype, ptype0)
• epyweb: Minimal support of GRIB2 files

Commit commit:660134f5

Contents, since 1.3.2:

• domain_making update: I and E zones in pgd
• hybridP_coord_to_3D_altitude_field()
• vgrid site package; provide handy tools to generate vertical hybrid-pressure coordinates (A & B)

• in place method modify_validity()

• even better handling of the gribapi indexes bug (the former still led to "Too many open files error")

• installation script: install_epygram.py

• numerous various fixes...
• doc: dependancies, colormaps, cheatsheet.pdf, epy_doc.py

Commit commit:1cfe0f1

Contents, since 1.2.15:

epygram is now Python3-compatible, EXCEPT that neither gribapi nor ecCodes is...

• new geometry RotatedLonLat
• get rid of home-made module myproj (towards pyproj)
• more consistent azimuth() between geometries (caution: non-reproducible with former method, available through plane_azimuth())
• more consistent use of geoid in distance/linspace/azimuth (caution: non-reproducible with before)
• Gauss grid: resolution_field_from_stretching

• better handling of the gribapi indexes bug (the former led to "Too many open files error")
• ecCodes support, with a switch to use gribapi/eccodes and default to ecCodes

• more options in the writing of fields

• use vortex' ftppool for faster and more reliable transfers

• new ctypesForFortran.py mechanism for interfacing Fortran routines (arpifs4py)
• stricter equality between objects, new function tolerant_equal()
• rationalisation of init_env()

• GeoPoints format: more modular
• numerous various fixes...
• doc and Field_Dict_FA updates

Commit commit:9b50175

Contents, since 1.2.10:

Functionalities:
change default colormap from seismic to RdBu_r, softer for the eyes...
more options to basemap
field.shave()
call to (e)trans_inq through SpectralGeometry object
ability to plot uniform fields with points/scatter
Gauss geometry resolution_field()
plotfield(): add rcparams control
mesh_area methods for projected grids
levelsnumber in H2D.plotfield() can be a discrete list of levels
function to compute gauss_latitudes()
function to compute 3D pressure field from hybrid-pressure coordinate and surface pressure

FA:
bugfix in FA-Gauss writing
guess field type (H2D/Misc) if not in Field Dict
more control on limitation of FA compression (customizable in config)

GRIB:
ability to read spectral fields (spherical harmonics)
workaround a bug in gribapi indexes
workaround 'pv' key absence

NetCDF:
regular_lonlat grid_mapping and resolution consistency

EPYWEB:
Epyweb fixes and updated defaults

usevortex:
fixes for FTP and session memory leak
quiet_get() context manager

domain_maker:
domain_maker reorganized in order to be used from Olive (clim_3to1 configuration)
departments option
margin in lonlat-included domain generation, customizable in config

Technical:
more unit-tests
movings to bronx site-package along vortex

Miscellaneous:
Doc and Notebooks update
Numerous various fixes
update Field_Dict_FA (visibility)

Commit commit:0e2352a

Contents, since 1.2.0:

Functionalities
Extract a subzone, keeping projection properties: field.extract_subarray()
Update of geometry.plotgeometry()
Factorization of functions in domain_maker
Histograms of fields: field.hist() + epy_hist.py
Option epy_stats.py --only_maxdiff/--oxd
Horizontaly averaged profiles (FA, epy_profile.py)
Grid-to-grid resampling: field.resample() and .resample_on_regularll()

FA
Ability to read/write GRIB2-encoded fields in FA (using grib_api), with an arpifs4py.so from cy42_op1 onwards

netCDF
On-the-fly options in writing: writefield(adhoc_behaviour=...)
Flattening

EPYWEB
Mode filesystem
Numerous various fixes

usevortex
Points/profiles extraction to netCDF: usevortex.extractor()

Technical
Unit-tests
Preparation to future compatibility with Python3
Support for LFI on MF-Bull

Miscellaneous
Numerous various fixes
Field data accessors, made cleaner
Various other cleanings
Update of the documentation
Notebooks in Tutorial

Commit commit:e0dcee6

netCDF
Several improvements w.r.t. convention CF-1.6 and geometry.
(Almost full-) Compatibility with the forthcoming SURFEX v8.1 netCDF outputs.

EPYWEB
Integration of EPYWEB: a Vortex+Epygram HTML interface for plotting fields from MF operational suites and OLIVE experiments.

Other new features
Pre-staging mode in usevortex
Function fields.psikhi2uv()
Function util.datetimerange()
Computation of wind direction

Miscellaneous
Porting fixes for Mageia6
More flexible colormaps scalings (as radar)

And a quantity of fixes !...

Commit commit:b53faebc

Advanced netCDF support:
Read/write from/to netCDF files well better handled (examples to come).
Support for any kind of fields, including temporal dimension (from a single Point to a 4D field).
Facility: any field can be dumped to a netCDF file, thanks to the dump_to_nc() method.

Fields' internal data is 4D
Although rather transparent to the user, the internal data storage of fields is now always 4D. This modification brings great simplification in many places.
The getdata()/setdata() methods are hereby essential to use, with the optional d4=True.

Better handling of time dimension in fields
Corrections, modifications linked to previous item, and possibility to extract a time index or extend time dimension with another field (cf. methods).

Animation of fields
Fields with a temporal dimension now propose a plotanimation() method, that create a matplotlib animation, that can be saved to a MP4 file.

"Special resources": or how to get 3D/4D fields from 2D resource(s)
A new proxy function to create easily "special resources" (epygram.resources.special_resource()), that enable to:
- make 3D fields from a resource containing a series of horizontal fields distributed on the vertical;
- make 2D fields + temporal dimension from a series of 1-time resources;
- combination of both.

Better handling of matplotlib's figures and axes in plotfield()
Enables to have multiple plots on the same figure, and a more trustful superposition of plots.

Derivatives for Gauss grid fields (arpifs4py)
Similarly to the cartesian grids, through the compute_xy_spderivatives() method.